CVE-2026-85604

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-04. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Grav before 2.0.18 (affected versions <= 2.0.17) contains a remote code execution vulnerability in the Twig sort filter. The sortFunc wrapper in GravExtension.php hardcodes Twig's isSandboxed argument to false, so unlike |map/|filter/|reduce, |sort accepts a plain function name inside the sandbox; the remaining denylist misses spl_autoload, which performs a PHP include. An authenticated user with only page-write rights (admin.pages or api.pages.write) can supply a crafted payload (e.g., via form frontmatter rendered by the Email plugin) that invokes spl_autoload through the sort filter, resulting in arbitrary PHP execution as the web server user.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
56(Track*)
EG Risk 56/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
57%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 4, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Grav before 2.0.19 Remote Code Execution via sort filter | Advisories | VulnCheck

https://www.vulncheck.com/advisories/grav-before-2.0.19-remote-code-execution-via-sort-filter
github Patch Available🟡 PoC Available

sort() passes isSandboxed=false, so a page editor can call arbitrary PHP functions through the Twig sandbox · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-p6qj-p5m7-f62h

Vendor Advisories for CVE-2026-85604(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 26× in last 7d / 85× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-25 06:03 UTCGHSA enrichment
  2. 2026-09-24 16:59 UTCEG score recompute
  3. 2026-09-24 16:59 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 03:55 UTCEG score recompute
  6. 2026-09-24 03:55 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 14:38 UTCGHSA enrichment
  9. 2026-09-23 01:32 UTCEG score recompute
  10. 2026-09-23 01:32 UTCGHSA enrichment
  11. 2026-09-22 16:01 UTCEPSS rescore
  12. 2026-09-22 12:28 UTCGHSA enrichment
  13. 2026-09-21 23:23 UTCEG score recompute
  14. 2026-09-21 23:23 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 10:18 UTCGHSA enrichment
  17. 2026-09-20 21:13 UTCEG score recompute
  18. 2026-09-20 21:13 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 08:09 UTCGHSA enrichment
  21. 2026-09-19 18:54 UTCEG score recompute
  22. 2026-09-19 18:54 UTCGHSA enrichment
  23. 2026-09-19 05:49 UTCEG score recompute
  24. 2026-09-19 05:49 UTCGHSA enrichment
  25. 2026-09-18 19:28 UTCEPSS rescore
Show 60 more
  1. 2026-09-18 16:45 UTCGHSA enrichment
  2. 2026-09-18 03:41 UTCEG score recompute
  3. 2026-09-18 03:41 UTCGHSA enrichment
  4. 2026-09-17 19:32 UTCEPSS rescore
  5. 2026-09-17 14:37 UTCGHSA enrichment
  6. 2026-09-17 01:33 UTCEG score recompute
  7. 2026-09-17 01:33 UTCGHSA enrichment
  8. 2026-09-16 14:09 UTCEPSS rescore
  9. 2026-09-16 12:29 UTCEG score recompute
  10. 2026-09-16 12:29 UTCGHSA enrichment
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 23:24 UTCGHSA enrichment
  13. 2026-09-15 10:16 UTCEG score recompute
  14. 2026-09-15 10:16 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-14 21:11 UTCGHSA enrichment
  18. 2026-09-14 07:58 UTCGHSA enrichment
  19. 2026-09-13 18:54 UTCEG score recompute
  20. 2026-09-13 18:54 UTCGHSA enrichment
  21. 2026-09-13 05:49 UTCGHSA enrichment
  22. 2026-09-12 16:45 UTCEG score recompute
  23. 2026-09-12 16:45 UTCGHSA enrichment
  24. 2026-09-12 03:41 UTCEG score recompute
  25. 2026-09-12 03:41 UTCGHSA enrichment
  26. 2026-09-11 14:53 UTCEPSS rescore
  27. 2026-09-11 14:53 UTCEPSS rescore
  28. 2026-09-11 14:37 UTCEG score recompute
  29. 2026-09-11 14:37 UTCGHSA enrichment
  30. 2026-09-11 01:33 UTCGHSA enrichment
  31. 2026-09-10 12:29 UTCEG score recompute
  32. 2026-09-10 12:29 UTCGHSA enrichment
  33. 2026-09-09 23:23 UTCGHSA enrichment
  34. 2026-09-09 09:19 UTCEG score recompute
  35. 2026-09-09 09:19 UTCGHSA enrichment
  36. 2026-09-08 22:01 UTCEPSS rescore
  37. 2026-09-08 20:14 UTCGHSA enrichment
  38. 2026-09-08 18:17 UTCEG score recompute
  39. 2026-09-08 18:17 UTCGHSA enrichment
  40. 2026-09-08 17:04 UTCEG score recompute
  41. 2026-09-08 17:04 UTCGHSA enrichment
  42. 2026-09-08 04:46 UTCEG score recompute
  43. 2026-09-08 04:46 UTCGHSA enrichment
  44. 2026-09-07 15:41 UTCGHSA enrichment
  45. 2026-09-07 02:37 UTCEG score recompute
  46. 2026-09-07 02:37 UTCGHSA enrichment
  47. 2026-09-06 13:48 UTCEPSS rescore
  48. 2026-09-06 13:30 UTCGHSA enrichment
  49. 2026-09-06 00:26 UTCEG score recompute
  50. 2026-09-06 00:26 UTCGHSA enrichment
  51. 2026-09-05 15:31 UTCEPSS rescore
  52. 2026-09-05 11:22 UTCEG score recompute
  53. 2026-09-05 11:22 UTCGHSA enrichment
  54. 2026-09-05 10:37 UTCEG score recompute
  55. 2026-09-05 10:36 UTCGHSA enrichment
  56. 2026-09-05 01:26 UTCEG score recompute
  57. 2026-09-05 01:26 UTCGHSA enrichment
  58. 2026-09-04 12:21 UTCEG score recompute
  59. 2026-09-04 11:34 UTCEG score recompute
  60. 2026-09-04 11:33 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-85604?
CVE-2026-85604 is a high vulnerability published on September 4, 2026. Grav before 2.0.18 (affected versions <= 2.0.17) contains a remote code execution vulnerability in the Twig sort filter. The sortFunc wrapper in GravExtension.php hardcodes Twig's isSandboxed argument to false, so unlike |map/|filter/|reduce, |sort accepts a plain function name inside the sandbox;…
When was CVE-2026-85604 disclosed?
CVE-2026-85604 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85604 actively exploited?
CVE-2026-85604 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 43.3% of all scored CVEs.
What is the CVSS score of CVE-2026-85604?
CVE-2026-85604 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-85604?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85604, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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